Root/net/ipv6/Kconfig

1#
2# IPv6 configuration
3#
4
5# IPv6 as module will cause a CRASH if you try to unload it
6menuconfig IPV6
7    tristate "The IPv6 protocol"
8    default m
9    ---help---
10      This is complemental support for the IP version 6.
11      You will still be able to do traditional IPv4 networking as well.
12
13      For general information about IPv6, see
14      <https://en.wikipedia.org/wiki/IPv6>.
15      For Linux IPv6 development information, see <http://www.linux-ipv6.org>.
16      For specific information about IPv6 under Linux, read the HOWTO at
17      <http://www.bieringer.de/linux/IPv6/>.
18
19      To compile this protocol support as a module, choose M here: the
20      module will be called ipv6.
21
22if IPV6
23
24config IPV6_ROUTER_PREF
25    bool "IPv6: Router Preference (RFC 4191) support"
26    ---help---
27      Router Preference is an optional extension to the Router
28      Advertisement message which improves the ability of hosts
29      to pick an appropriate router, especially when the hosts
30      are placed in a multi-homed network.
31
32      If unsure, say N.
33
34config IPV6_ROUTE_INFO
35    bool "IPv6: Route Information (RFC 4191) support"
36    depends on IPV6_ROUTER_PREF
37    ---help---
38      This is experimental support of Route Information.
39
40      If unsure, say N.
41
42config IPV6_OPTIMISTIC_DAD
43    bool "IPv6: Enable RFC 4429 Optimistic DAD"
44    ---help---
45      This is experimental support for optimistic Duplicate
46      Address Detection. It allows for autoconfigured addresses
47      to be used more quickly.
48
49      If unsure, say N.
50
51config INET6_AH
52    tristate "IPv6: AH transformation"
53    select XFRM_ALGO
54    select CRYPTO
55    select CRYPTO_HMAC
56    select CRYPTO_MD5
57    select CRYPTO_SHA1
58    ---help---
59      Support for IPsec AH.
60
61      If unsure, say Y.
62
63config INET6_ESP
64    tristate "IPv6: ESP transformation"
65    select XFRM_ALGO
66    select CRYPTO
67    select CRYPTO_AUTHENC
68    select CRYPTO_HMAC
69    select CRYPTO_MD5
70    select CRYPTO_CBC
71    select CRYPTO_SHA1
72    select CRYPTO_DES
73    ---help---
74      Support for IPsec ESP.
75
76      If unsure, say Y.
77
78config INET6_IPCOMP
79    tristate "IPv6: IPComp transformation"
80    select INET6_XFRM_TUNNEL
81    select XFRM_IPCOMP
82    ---help---
83      Support for IP Payload Compression Protocol (IPComp) (RFC3173),
84      typically needed for IPsec.
85
86      If unsure, say Y.
87
88config IPV6_MIP6
89    tristate "IPv6: Mobility"
90    select XFRM
91    ---help---
92      Support for IPv6 Mobility described in RFC 3775.
93
94      If unsure, say N.
95
96config INET6_XFRM_TUNNEL
97    tristate
98    select INET6_TUNNEL
99    default n
100
101config INET6_TUNNEL
102    tristate
103    default n
104
105config INET6_XFRM_MODE_TRANSPORT
106    tristate "IPv6: IPsec transport mode"
107    default IPV6
108    select XFRM
109    ---help---
110      Support for IPsec transport mode.
111
112      If unsure, say Y.
113
114config INET6_XFRM_MODE_TUNNEL
115    tristate "IPv6: IPsec tunnel mode"
116    default IPV6
117    select XFRM
118    ---help---
119      Support for IPsec tunnel mode.
120
121      If unsure, say Y.
122
123config INET6_XFRM_MODE_BEET
124    tristate "IPv6: IPsec BEET mode"
125    default IPV6
126    select XFRM
127    ---help---
128      Support for IPsec BEET mode.
129
130      If unsure, say Y.
131
132config INET6_XFRM_MODE_ROUTEOPTIMIZATION
133    tristate "IPv6: MIPv6 route optimization mode"
134    select XFRM
135    ---help---
136      Support for MIPv6 route optimization mode.
137
138config IPV6_VTI
139tristate "Virtual (secure) IPv6: tunneling"
140    select IPV6_TUNNEL
141    depends on INET6_XFRM_MODE_TUNNEL
142    ---help---
143    Tunneling means encapsulating data of one protocol type within
144    another protocol and sending it over a channel that understands the
145    encapsulating protocol. This can be used with xfrm mode tunnel to give
146    the notion of a secure tunnel for IPSEC and then use routing protocol
147    on top.
148
149config IPV6_SIT
150    tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
151    select INET_TUNNEL
152    select NET_IP_TUNNEL
153    select IPV6_NDISC_NODETYPE
154    default y
155    ---help---
156      Tunneling means encapsulating data of one protocol type within
157      another protocol and sending it over a channel that understands the
158      encapsulating protocol. This driver implements encapsulation of IPv6
159      into IPv4 packets. This is useful if you want to connect two IPv6
160      networks over an IPv4-only path.
161
162      Saying M here will produce a module called sit. If unsure, say Y.
163
164config IPV6_SIT_6RD
165    bool "IPv6: IPv6 Rapid Deployment (6RD)"
166    depends on IPV6_SIT
167    default n
168    ---help---
169      IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
170      mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly
171      deploy IPv6 unicast service to IPv4 sites to which it provides
172      customer premise equipment. Like 6to4, it utilizes stateless IPv6 in
173      IPv4 encapsulation in order to transit IPv4-only network
174      infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6
175      prefix of its own in place of the fixed 6to4 prefix.
176
177      With this option enabled, the SIT driver offers 6rd functionality by
178      providing additional ioctl API to configure the IPv6 Prefix for in
179      stead of static 2002::/16 for 6to4.
180
181      If unsure, say N.
182
183config IPV6_NDISC_NODETYPE
184    bool
185
186config IPV6_TUNNEL
187    tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
188    select INET6_TUNNEL
189    ---help---
190      Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
191      RFC 2473.
192
193      If unsure, say N.
194
195config IPV6_GRE
196    tristate "IPv6: GRE tunnel"
197    select IPV6_TUNNEL
198    select NET_IP_TUNNEL
199    ---help---
200      Tunneling means encapsulating data of one protocol type within
201      another protocol and sending it over a channel that understands the
202      encapsulating protocol. This particular tunneling driver implements
203      GRE (Generic Routing Encapsulation) and at this time allows
204      encapsulating of IPv4 or IPv6 over existing IPv6 infrastructure.
205      This driver is useful if the other endpoint is a Cisco router: Cisco
206      likes GRE much better than the other Linux tunneling driver ("IP
207      tunneling" above). In addition, GRE allows multicast redistribution
208      through the tunnel.
209
210      Saying M here will produce a module called ip6_gre. If unsure, say N.
211
212config IPV6_MULTIPLE_TABLES
213    bool "IPv6: Multiple Routing Tables"
214    select FIB_RULES
215    ---help---
216      Support multiple routing tables.
217
218config IPV6_SUBTREES
219    bool "IPv6: source address based routing"
220    depends on IPV6_MULTIPLE_TABLES
221    ---help---
222      Enable routing by source address or prefix.
223
224      The destination address is still the primary routing key, so mixing
225      normal and source prefix specific routes in the same routing table
226      may sometimes lead to unintended routing behavior. This can be
227      avoided by defining different routing tables for the normal and
228      source prefix specific routes.
229
230      If unsure, say N.
231
232config IPV6_MROUTE
233    bool "IPv6: multicast routing"
234    depends on IPV6
235    ---help---
236      Experimental support for IPv6 multicast forwarding.
237      If unsure, say N.
238
239config IPV6_MROUTE_MULTIPLE_TABLES
240    bool "IPv6: multicast policy routing"
241    depends on IPV6_MROUTE
242    select FIB_RULES
243    help
244      Normally, a multicast router runs a userspace daemon and decides
245      what to do with a multicast packet based on the source and
246      destination addresses. If you say Y here, the multicast router
247      will also be able to take interfaces and packet marks into
248      account and run multiple instances of userspace daemons
249      simultaneously, each one handling a single table.
250
251      If unsure, say N.
252
253config IPV6_PIMSM_V2
254    bool "IPv6: PIM-SM version 2 support"
255    depends on IPV6_MROUTE
256    ---help---
257      Support for IPv6 PIM multicast routing protocol PIM-SMv2.
258      If unsure, say N.
259
260endif # IPV6
261

Archive Download this file



interactive